60-second Science

In his announcement today that he was taking executive action to require more gun sellers to be licensed and to do background checks on gun buyers, Pres. Barack Obama also touched on the problems facing public health researchers who try to study gun violence and deaths.  

The numbers of large carnivores, especially leopards, are increasing in private lands and lands outside the protected-area systems in India, bringing new challenges for coexistence.   Learn more about your ad choices. Visit megaphone.fm/adchoices

Researchers engineered bitumen—the sticky black stuff in asphalt—to release its own salt, to battle the formation of ice. Christopher Intagliata reports

Twelve alcohol brands among the top 25 preferred brands for teen black drinkers don’t appear at all on the top 25 for young white drinkers   Learn more about your ad choices. Visit megaphone.fm/adchoices

Almost all southern right whale calves off the coast of Argentina’s Peninsula Valdez are being fed upon, some fatally, by kelp gulls, which was a rare occurrence four decades ago   Learn more about your ad choices. Visit megaphone.fm/adchoices

Thinner sea ice is getting pushed farther by Arctic winds, which makes polar bears walk more to stay in the same place, increasing their need for food.  

Using climate models and tree physiological data, researchers forecast a near-complete annihilation of evergreens in the southwest by the year 2100. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices

Researchers designed a chip that transfers data not with electrons but with photons—resulting in a potential 10-fold boost in speed. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices

Heavy drinkers age 18 to 25 who got texts before and after each weekend about their weekend drinking plans cut their alcohol intake compared with those who got no texts or more perfunctory texts  

A compound found in extra virgin olive oil and red wine reduced mice’s risk of clogged arteries. Christopher Intagliata reports

Nicholas Matzke, an American evolutionary biologist currently at the Australian National University in Canberra, performed a phylogenetic-style analysis of dozens of antievolution education bills in various state legislatures to track their relatedness  

Stickleback fish in Alaska evolved from living in seawater to freshwater in just 50 years, with the help of freshwater traits in their genome. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices

Marion Nestle, author of Soda Politics: Taking on Big Soda (and Winning), talked December 14 in New York City about Coca-Cola's attempt to fund research designed to find sugared soft drinks innocent in contributing to obesity  

In a study of first graders, teachers rated low-performing minority students more positively than low-performing white students, but they ranked high-performing minority students lower than white students at the same level Learn more about your ad choices. Visit megaphone.fm/adchoices

A brief portion of the December 9 conversation during the climate talks in France between Secretary of Energy Ernest Moniz and Scientific American’s David Biello  

Roaches get the signal to gather together from pheromones produced by their gut microbes and released in the insects’ excrement. Christopher Intagliata reports

Among its goals, the coalition of countries, including the U.S., wants an agreement that the world must aim as soon as possible to hold global warming to 1.5-degree Celsius and work toward a long-term low-carbon future  

An analysis determines that many road-building projects in Africa would bring only modest benefits to people, while devastating the environment. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices

Scientists can provide the info to make sure that the correct areas are chosen for protection to help ensure the continued robustness of a region's biodiversity  

Closely tracking 800 people's blood glucose levels in response to meals allowed researchers to develop a predictive algorithm for individuals   Learn more about your ad choices. Visit megaphone.fm/adchoices